package Thread;

import java.util.Scanner;

public class Demo25 {
    public static void main(String[] args) throws InterruptedException {
        Object locker = new Object();

        Thread t1 = new Thread(() -> {
            synchronized (locker){
                System.out.println("t1 等待之前");
                try {
                    locker.wait();
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }

                System.out.println("t1 等待之后");
            }
        });

        Thread t2 = new Thread(() -> {
            Scanner scanner = new Scanner(System.in);
            synchronized (locker){
                System.out.println("t2 通知之前");
                //借助Scanner控制阻塞,用户输入之前,都是阻塞状态
               //scanner.next();
               locker.notify();
                System.out.println("t2 通知之后");
            }
        });

        t2.start();
        Thread.sleep(100);
        t1.start();
        
    }
}
